Function Description:
The Mi Band itself can store data separately, so you don't have to carry your phone when you go for a run or sleep. Only when synchronizing data, you need to turn on the phone's Bluetooth and place it near the band to connect.
The main body of the mi band can retain the movement data information for up to 7 days. Data that has been synchronized to Mi Fit App will be automatically uploaded for storage. If a new phone is replaced, as long as the previous Mi Account is used on the new phone and the band is bound, the previous data can be synchronized to the new phone.